Turbine blade repair

Details Turbine blade repair Turbine blade repair

1992-04-24

1993-10-19

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

416194, 416196R, 416500, 298891, 228119, 228170, 228171, F01D 510

Patent

active

052539784

ABSTRACT:
A method of repairing a turbine blade comprising the steps of ascertaining a normal vibration characteristic of the blade, separating an outer end part of the blade from a residual inner part of the blade and subsequently securing a new end part to the residual part so that a joint between the new end part and the residual part is positioned in a predetermined relationship to said vibration characteristic.

REFERENCES:
patent: 3912151 (1975-10-01), Martin et al.
patent: 4118147 (1978-10-01), Ellis
patent: 4477226 (1984-10-01), Carreno
patent: 4480957 (1984-11-01), Patel et al.
patent: 4514143 (1985-04-01), Campbell
patent: 4611744 (1986-09-01), Fraser et al.
patent: 4872810 (1989-10-01), Brown et al.
patent: 4896408 (1990-01-01), Fraser
patent: 5031313 (1991-07-01), Blair et al.
patent: 5033938 (1991-07-01), Fraser et al.
Drahy, Josef; "New Approach to Dynamic Problems of Steam-Turbine Blades"; Technical Digest 7-81 '68 (no date).

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